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Contractual interest rate for funds borrowed, under the debt agreement.

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Subsequent Event (Details) - USD ($) $ in Millions	1 Months Ended
Subsequent Event (Details) - USD ($) $ in Millions	Aug. 31, 2023	Jul. 31, 2023	Jun. 30, 2023	Apr. 30, 2022
ChaoYang KaiMei Quartz Co., Ltd
Subsequent Event
Ownership (as a percent)	40.00%		40.00%	40.00%
Subsequent Event
Subsequent Event
Loan amount		$ 4.2
Term of loan		1 year
Repayments of loan		$ 2.8
Subsequent Event \| ChaoYang KaiMei Quartz Co., Ltd
Subsequent Event
Payment for investment	$ 0.6	$ 0.6
Subsequent Event \| Minimum
Subsequent Event
Interest Rate		3.80%
Subsequent Event \| Maximum
Subsequent Event
Interest Rate		4.30%